I want to show image files after uploading these images..i have a html file and Servlet file where i'm uploading some images,but i want to show those images through a html page where user can view them..can it be possible??plz guide me what should i do??i'm sending html page and servlet page,plz help...
HTML file
<html>
<body>
<form action="image" method="post" enctype="multipart/form-data">
Select File:<input type="file" name="fname"/>
<input type="submit" value="upload"/>
</form>
</body>
</html>
and Servlet File
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
/**
* A Java servlet that handles file upload from client.
*
* @author www.codejava.net
*/
public class image extends HttpServlet {
private static final long serialVersionUID = 1L;
// location to store file uploaded
private static final String UPLOAD_DIR = "upload";
// upload settings
private static final int MEMORY_THRESHOLD = 1024 * 1024 * 3; // 3MB
private static final int MAX_FILE_SIZE = 1024 * 1024 * 40; // 40MB
private static final int MAX_REQUEST_SIZE = 1024 * 1024 * 50; // 50MB
/**
* Upon receiving file upload submission, parses the request to read
* upload data and saves the file on disk.
*/
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
// checks if the request actually contains upload file
if (!ServletFileUpload.isMultipartContent(request)) {
// if not, we stop here
PrintWriter writer = response.getWriter();
writer.println("Error: Form must has enctype=multipart/form-data.");
writer.flush();
return;
}
// configures upload settings
DiskFileItemFactory factory = new DiskFileItemFactory();
// sets memory threshold - beyond which files are stored in disk
factory.setSizeThreshold(MEMORY_THRESHOLD);
// sets temporary location to store files
factory.setRepository(new File(System.getProperty("java.io.tmpdir")));
ServletFileUpload upload = new ServletFileUpload(factory);
// sets maximum size of upload file
upload.setFileSizeMax(MAX_FILE_SIZE);
// sets maximum size of request (include file + form data)
upload.setSizeMax(MAX_REQUEST_SIZE);
// constructs the directory path to store upload file
// this path is relative to application's directory
String uploadPath = getServletContext().getRealPath("")
+ File.separator + UPLOAD_DIR;
// creates the directory if it does not exist
File uploadDir = new File(uploadPath);
if (!uploadDir.exists()) {
uploadDir.mkdir();
}
try {
// parses the request's content to extract file data
@SuppressWarnings("unchecked")
List<fileitem> formItems = upload.parseRequest(request);
if (formItems != null && formItems.size() > 0) {
// iterates over form's fields
for (FileItem item : formItems) {
// processes only fields that are not form fields
if (!item.isFormField()) {
String fileName = new File(item.getName()).getName();
String filePath = uploadPath + File.separator + fileName;
File storeFile = new File(filePath);
item.write(storeFile);
request.setAttribute("message",
"Upload has been done successfully!");
}
}
}
} catch (Exception ex) {
request.setAttribute("message",
"There was an error: " + ex.getMessage());
}
getServletContext().getRequestDispatcher("/message.jsp").forward(request, response);
}
}
Truly speaking i got this servlet code from internet..if this code wrong plz help...plz plz ...
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